PDBe 1qk2

X-ray diffraction
2Å resolution

Function and Biology Details

Reaction catalysed:
Hydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose and cellotetraose, releasing cellobiose from the non-reducing ends of the chains. 
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Exoglucanase 2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 363 amino acids
Theoretical weight: 38.91 KDa
Source organism: Trichoderma reesei
Expression system: Trichoderma reesei
  • Canonical: P07987 (Residues: 109-471; Coverage: 81%)
Gene name: cbh2
Sequence domains: Glycosyl hydrolases family 6
Structure domains: Glycosyl hydrolases family 6, cellulases

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P21
Unit cell:
a: 48.83Å b: 74.7Å c: 91.84Å
α: 90° β: 104.12° γ: 90°
R R work R free
0.189 0.189 0.222
Expression system: Trichoderma reesei